<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>01-html引入css</title>
  <link rel="stylesheet" href="01-html引入.css">
  <style>
    div{
      color: aqua;
      font-size: 10px;
    }
  </style>

</head>
<body>
    <div style="color: brown ;font-size: 20px">div1</div>
    <div>div2</div>
    <div>div3</div>
    <div>div4</div>
</body>
</html>